<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>租房管理系统</title>
</head>
<body>
<div align="center">
    <h1>登录界面</h1>
    <form>
        用户名：<input name="username" type="text"/><br/>
        密码:<input type="password" name="password"><br/>
        <button type="submit">登录</button>
        <button>注册</button>
    </form>
</div>

</body>
</html>